cocoapods update error

Run pod install

Get message like below

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[!] From now on use `abc.xcworkspace`.
[!] The use of implicit sources has been deprecated. To continue using all of the sources currently on your machine, add the following to the top of your Podfile:
source 'https://github.com/CocoaPods/Specs.git'
[!] The `abc [Debug]` target overrides the `OTHER_LDFLAGS` build setting defined in `Pods/Target Support Files/Pods/Pods.debug.xcconfig'. This can lead to problems with the CocoaPods installation
- Use the `$(inherited)` flag, or
- Remove the build settings from the target.
[!] The `abc [Release]` target overrides the `OTHER_LDFLAGS` build setting defined in `Pods/Target Support Files/Pods/Pods.release.xcconfig'. This can lead to problems with the CocoaPods installation
- Use the `$(inherited)` flag, or
- Remove the build settings from the target.

Build project get error below

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Undefined symbol for architecture “_OBJC_CLASS_$_AFHTTPClient”
blablabla

#Solution :

Add $(inherited) to Ohter Linker Flags